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Finding the Fourth Proportional to 63,438.64, 87,544.44 and 36,581.20

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Solution

The fourth proportional to 63,438.64, 87,544.44 and 36,581.20 is: 50,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,438.64 : 87,544.44 = 36,581.20 : x
  2. Step 2: Convert to fraction form
    63,438.64/87,544.44 = 36,581.20/x
  3. Step 3: Cross multiply
    63,438.64x = 87,544.44 × 36,581.20
  4. Step 4: Simplify right side
    63,438.64x = 3,202,480,668.53
  5. Step 5: Solve for x
    x = 3,202,480,668.53/63,438.64
  6. Step 6: Final answer
    x = 50,481.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.